The Ford Barn

mrtexas · 09-02-2023, 08:15 PM

I'm trying to remove the input shaft of a 48 case with later 78 case gears. I have the bearing retainer off. I'm tapping on part 7025 and it is loose but won't come out all the way.

What am I missing?

48fordnut · 09-02-2023, 08:16 PM

Van Pelt catalog

Boggus Deal · 09-02-2023, 08:19 PM

Have you dropped the cluster gear down? Typically the input shaft won’t come out until the cluster is out of the way.

mrtexas · 09-02-2023, 08:21 PM

Quote:

Originally Posted by 48fordnut

Van Pelt catalog

That is where the pictures are from.

mrtexas · 09-02-2023, 08:21 PM

Quote:

Originally Posted by Boggus Deal

Have you dropped the cluster gear down? Typically the input shaft won’t come out until the cluster is out of the way.

Thanks I'll give that a try!

petehoovie · 09-02-2023, 08:26 PM

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JM 35 Sedan · 09-03-2023, 07:25 AM

Quote:

Originally Posted by Boggus Deal

Have you dropped the cluster gear down? Typically the input shaft won’t come out until the cluster is out of the way.

BINGO!! That's "the key that has to turn" to get that input shaft out and I'm sure that is mentioned in MacVP's transmission book.

cmbrucew · 09-03-2023, 08:42 AM

I have ground some of the teeth on the pilot shaft down enough to clear the cluster gear. Then I could use the pilot shaft to align the disk and pp.

This was in 1965-66, I did not have the time or tools I did later. Just get it running.
Bruce

JM 35 Sedan · 09-03-2023, 10:51 AM

There are a few tricks for getting some of the later gear combinations together or apart when the early 48 case is used. I'm not sure if Mac mentions any of this in his book, but there are some posts on this or other websites that walk you thru these assemblies.

Bored&Stroked · 09-04-2023, 05:11 AM

As others noted - you have to pull the main cluster support shaft to drop the cluster down - such that the input shaft will come out. The only situation where this is not needed is when you're running certain Lincoln Zephyr gear sets - the input has some synchro teeth ground off of it to let it slip past the cluster.

Kube · 09-04-2023, 08:36 AM

Quote:

Originally Posted by JM 35 Sedan

There are a few tricks for getting some of the later gear combinations together or apart when the early 48 case is used. I'm not sure if Mac mentions any of this in his book, but there are some posts on this or other websites that walk you thru these assemblies.

I'd made a puller / pusher that R&R the front bearing prior to attempting to remove the shaft. That made the installation of later gears in the early cases so much easier.

09-02-2023, 08:16 PM	#2
48fordnut Senior Member Join Date: Sep 2010 Location: warner robins ga 31088 Posts: 494	Re: v8 transmission breakdown Van Pelt catalog

09-02-2023, 08:19 PM	#3
Boggus Deal Junior Member Join Date: Jan 2015 Posts: 11	Re: v8 transmission breakdown Have you dropped the cluster gear down? Typically the input shaft won’t come out until the cluster is out of the way.

09-02-2023, 08:26 PM	#6
petehoovie Senior Member Join Date: May 2015 Posts: 8,160	Re: v8 transmission breakdown Sponsored Links (Register now to hide all advertisements) __________________ The only thing nice about being imperfect is the joy it brings to others.... *"Silver rings, your butt! Them's washers!"* "We shot our way out of that town for a dollar's worth of steel holes!" - from 'The Wild Bunch' - 1969 https://www.youtube.com/watch?v=7NReUd2_0u0

09-03-2023, 08:42 AM	#8
cmbrucew Senior Member Join Date: Dec 2010 Location: North of sandy ago, CA. Posts: 2,064	Re: v8 transmission breakdown I have ground some of the teeth on the pilot shaft down enough to clear the cluster gear. Then I could use the pilot shaft to align the disk and pp. This was in 1965-66, I did not have the time or tools I did later. Just get it running. Bruce __________________ Works good Lasts long time

09-03-2023, 10:51 AM	#9
JM 35 Sedan Senior Member Join Date: May 2010 Location: Near Rising Sun, Maryland Posts: 10,858	Re: v8 transmission breakdown There are a few tricks for getting some of the later gear combinations together or apart when the early 48 case is used. I'm not sure if Mac mentions any of this in his book, but there are some posts on this or other websites that walk you thru these assemblies. __________________ *John* *"Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein*

09-04-2023, 05:11 AM	#10
Bored&Stroked Senior Member Join Date: Jan 2011 Location: Central Ohio Posts: 5,070	Re: v8 transmission breakdown As others noted - you have to pull the main cluster support shaft to drop the cluster down - such that the input shaft will come out. The only situation where this is not needed is when you're running certain Lincoln Zephyr gear sets - the input has some synchro teeth ground off of it to let it slip past the cluster.